The most reliable basis for the diagnosis of tuberculosis

The most reliable basis for the diagnosis of tuberculosis is to do sputum culture, that is, to sample the patient's sputum, and then culture the bacteria under professional medical technology. When mycobacterium tuberculosis is cultured in the sputum, it can be diagnosed as tuberculosis very clearly. However, this method takes a relatively long time and is also a kind of suffering for the patient. It may also show some bad conditions because the treatment is not timely. Therefore, in clinical diagnosis of tuberculosis can be based on some of the patient's symptoms, signs, imaging examination and sputum smear to find acid-fast bacilli and other methods to make a diagnosis, but this method also has some defects, because can stain not necessarily only Mycobacterium tuberculosis.